<template>
  <div>
      <el-breadcrumb separator="/">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>数据统计</el-breadcrumb-item>
        <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

     <el-card>
       <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
    <div id="main" style="width: 750px;height:400px;"></div>
     </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
import  _ from 'lodash'
export default {
  data() {
    return {
       options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
 async  mounted() {
     var myChart = echarts.init(document.getElementById('main'));
       const {data:res} =await  this.$http.get('reports/type/1')
       if (res.meta.status !== 200) {
          return this.$message.error('获取折线图数据失败！')
        }
   
      // const result=Object.assign(res.data,this.option)
      const result=_.merge(res.data,this.option)
        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(result);
   },
   created() {
     
   },
}
</script>

<style>

</style>